Seam-finishing machine



(No Model.)

v 2 She'e'ts' -Shet 2,.- I. HAYES.

SEAM FINISHING MACHINE.

-\\\\\\\\\\\\\\\\\\\\ Z///IIII////////// UNIT D STATES PATENT OFFICE.

ISRAEL HAYES, OF-FARMINGTON, NEW HAMPSHIRE.

SEAM-FINISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 502,719, dated August8, 1893.

Application filed May 1, 1893- Serial No. 472,491. (No model.)

To all whom it may concern.-

Be it known that I, ISRAEL HAYES, of Farmington, in the county ofStrafford and State of New Hampshire, have invented a new and usefulImprovement in Machines for Rubbing, Pressing, and Finishing Seams,which improvement will, in connection with the accompanying drawings, behereinafter fully described, and specifically defined in the appendedclaims.

My invention relates to mechanism for tinishing the seams of boots orshoes by pressing, flattening and rubbing the same; and also finishingor setting the edge of the welt, when such a piece is interposed betweenthe edges of the material seamed together. And the invention consists incertain novel parts and combinations embodied in the machine hereinafterdescribed, and as pointed out in the appended claims.

In the drawings Figure 1 is a perspective View of the machine embodyingmy invention as seen from the front, or standpoint of the operator whenusing the same. Fig. 2 is a like view from the rear or oppositestandpoint. Fig. 3 is a top view or plan of the same. Figs. 4. and 5respectively represent in elevation and section the upper welt-finishingroll. Figs. 6 and 7 respectively represent a side and face view of thegrooved under welt-seam roll. Figs. 8 and 9 respectively represent aside and face view of a fluted roll having no central circumferentialgroove. Fig. 10 represents a cross-section of a seam with a welt and asunfinished. v Fig. 11 represents the same as finished. Fig. 12represents a cross-section of a seam without awelt and as unfinished.Fig. 13 represents the same as finished. I

The machine when in practical use is mounted upon a work-bench andsecured thereto by screws through its threefeet; and its presser-leveris connected by a lifting rod with a treadle mechanism secured to thefloor, as shown only in Fig. 2, and by which the end of the leverconnected therewithmay be forced upward by the foot of the operator toseparate the rolls when required.

The machine as represented in the drawings consists of a table Aextending in two directions at right .angles to each other and supportedupon three feet: an overhanging arm B, mounted upon one end of the tableand extending outward therefrom above and beyond the width of thatportion of the table: a standard 0, upon the opposite end of the table:a horizontal lever D, pivoted in said standard and arranged at rightangles to arm.B: a shaft E, extending longitudinally through arm B andarranged to revolve in bearings therein: a driving-wheel F, secured tothe outer end of said shaft: a seamrubbing and flattening roll G,secured to the opposite end of said shaft to revolve therewith: apresser-roll H, pivoted in the end of a lever D, and arranged to bearwith yielding pressure up against roll G: an adjustable spring I,secured at one end to the under side of the table, and at its oppositeand projecting end connected with lever Dby a threaded hook J, whichclasps the spring at one end while its opposite end passes upwardthrough the lever and is threaded into a nut K, above the lever, bywhichit is secured in place and adjusted. A lifting screw L is threadedthrough lever D and bears at its lower end against the top of a boss .Mon the table. A lifting-rod N is also connected with the rear end oflever D,so as to press upward against the same, as represented in Fig.2, and at its lower end is attached to atreadle mechanism N, in a mannerwell known and represented only in said Fig. 2, for raising the end ofthe lever and depressing the roll on its opposite end when required.

Through a loop P on the backof arm B is extended a fiat spring P,threaded through one end of which is an adjusting screw R,

which bears against arm B, and by the turning of which more or lesspressure of the spring I acting through lever L. This force may beincreased or diminished by turning nut K, as will be readily understood;and may be overcome or counteracted, so as to separate the rolls, bymeans of the treadle mechanism acting through rod N. And the rolls maybe kept slightly apart to avoid useless wear of one upon the other, andnoise, when the machine is running idly in the intervals betweenpresentations of work to the rolls, by the interposed screw L when soadjusted as to sustain the stress of spring I as the screw rests on bossM. The treadle is employed to force the rolls apart to facilitate theintroduction of the material to be pressed and finished between them.Roll G is positively driven by the turning of shaft E to which it issecured; while roll H is turned by frictional contact with the workinterposed between the two rolls and carried through by roll G; andconsequently the operator by holding on to the work firmly may retardits progress under the action of roll G, or draw it backward after ithas been carried forward by said roll, and thereby cause said upper rollto produce both a rubbing and pressing effect on the seam and withbetter finishing results.

Great convenience in handling the work is derived from having the tableformed as shown so that the arms by which the rolls are supported arearranged on the table at right angles to each other and overhang an openspace at considerable distance beyond the edge of the table.

tended and arranged to co-act with the upper may be partly inclosed, asin boot legs or closed shoes.

and is fluted, or provided with a series of transverse grooves Z), andat the intersections of groove a and groove 1) there is a series ofsmall circular cavities c. WVhile the sides of groove a turn down themarginal edges of the,

parts which are stitched together and press them respectively on to thebody of the material to which they belong, the countersunk cavities ctend to support the seam laterally so as to prevent undue strain uponthe stitches by such action of groove a, and thus avoidl impairing thestrength and appearance of the seam in the process of finishing thesame; and the cross flutes or grooves I) serve in the rapid rotation ofthe roll to hammer down the margins of the seam so turned over, and alsooperate as a feed to cause the work to progress. During the operationabove described the lower, smooth faced roll H is pressed up against thematerial acted upon by roll G} with the elastic force of spring I as itmay; be adjusted. These rolls Gand H, constructed; as described, areadapted to the work represented in Figs. 12 and 13.

For the work represented in Figs. 10 and shown.

And also by having the. under, or presser roll, hung in an arm so ex-Rolls of various formation on their peripheral faces are employedinterchangeably in the machine, according to the requirements of thework to be finished. Rollj G, which is adapted to finish seams without,welts, has a central circumferential groove 00,.

11 rolls like G and H represented in Figs. 4, 5, 6, 7, are employed inthe place of rolls G and H. Instead of a groove a as in roll G, thisroll G is formed or provided with a central, circumferential groovedridge cl, which operates on the face side of the seam, and as awelt-setter for finishing the edge of the weltpiece e which is stitchedinto the seam as This roll G is made in three parts. The face of theroll proper is transversely fluted and slightly concaved, and the rollis divided so as to embrace between its halves a thin steel disk whoserounded and grooved edge constitutes the ridge (Z, as shown in Fig. 5,and the parts are clamped together by screws, as indicated in saidfigure. Roll H,

which is designed to co-operate with roll G,

has a broad circumferential groove fin its face to receive the edges ofthe heavy, welted seam and press and flatten the same against the upperroll while the latter is setting the edge of the welt on the upper andfinished side of the work. Roll G is a fluted roll without acircumferential groove, and has a plain surface between thecross-grooves, and is used to advantage on light stock in conjunctionwith roll H, which serves as a yielding work-support by which the seamsare pressed with adjustable elastic force against the various upperrolls. The work being thus supported upon a yielding presser-roll turnedonly by frictional contact with the moving stock as the latter is causedto progress by the positive rotation of the upper roll in contacttherewith, or is caused, by the exertions of the operator, to standstill, or retrace under the rotations of the upper roll, enables theoperator to give more or less rubbing to the seam, or to portionsthereof, as the nature of the work may require, without injury to theface side of the stock. And the rolls being supported by overhangingarms arranged at right angles to each other, with clear space beneaththe same outside of the limits of the table; and the long reach anddownward curvature of the arm of lever D, between its standard 0 androll H, greatly facilitate the operations of the machine, especiallyupon curved and inclosed seams.

While the machine which I have now fully described is unusually simplein construction, it is capable of doing, and does do, all the varietiesof scam finishing, light and heavy, in a superior manner, and withslight difficulty of manipulation, and requiring little skill on thepart of the operator.

I claim 1. A seam-finishing machine embodying the combination of a tableA: an arm B secured to the table and overhanging the edge thereof: arevolving shaft E mounted in said arm: a seam-pressing roll G, securedto said shaft and rotated thereby: a presser-leverD mounted upon thetable and overhanging the edge thereof at right angles to arm 13: awork-supporting roll H pivoted in the end of said lever and arranged touphold and press the work in said arm: a roll, adapted to the purpose offinishing seams, secured to, and revolved by, said shaft: a suitableroll arranged to support the work and uphold the same, with the 4requisite pressure against said revolving roll:

a lever secured to, and projecting from the table, and supporting saidunder roll: a spring I arranged to actuate said lever: and a treadlemechanism connected with the lever whereby the rolls may be separated bythe foot of the operator; all substantially as specified.

3. The combination of table A: arm B: 20 shaft E: roll G positivelyrotated by said shaft: the friction device consisting of block S, springP, loop P and screw R: lever D: roll H upheld by said lever and turnedby frictional contact with the moving seam: screw L threaded into saidlever and bearing against the table: spring I attached at one end to thetable and having its opposite end connected with the lever: and atreadle mechanism arranged to lift the end of said lever: all operatingtogether and relatively to each other, substantially as and for thepurposes specified.

ISRAEL HAYES.

Witnesses:

ANNIE M. EDGERLY, DANIEL W. KIMBALL.

